The least totient number k with exactly n solutions to the equation phi(x) = k, where all the solutions are nontotient numbers (A007617).

A378510

The least totient number k with exactly n solutions to the equation phi(x) = k, where all the solutions are nontotient numbers (A007617).

Terms

    a(0) =30a(1) =116a(2) =42a(3) =456a(4) =780a(5) =1140a(6) =1368a(7) =1380a(8) =3420a(9) =4356a(10) =5104a(11) =20196a(12) =9396a(13) =1980a(14) =15876a(15) =8316a(16) =4860a(17) =16380a(18) =79464a(19) =239976a(20) =15720a(21) =69300a(22) =129960a(23) =70000a(24) =90360a(25) =141680a(26) =263160a(27) =835380a(28) =802296a(29) =706680

External references